/*
 * This file is part of the TREZOR project, https://trezor.io/
 *
 * Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __BUTTONS_H__
#define __BUTTONS_H__

#include <libopencm3/stm32/gpio.h>
#include <stdbool.h>

struct buttonState {
    volatile bool YesUp;
    volatile int YesDown;
    volatile bool NoUp;
    volatile int NoDown;
};

extern struct buttonState button;
extern bool simulateButtonPress;
extern int buttonPressType;

enum button_press_enum {
    BTN_LEFT,
    BTN_RIGHT,
    BTN_LEFT_RIGHT
};

uint16_t buttonRead(void);
void buttonUpdate(void);

#ifndef BTN_PORT
#define BTN_PORT GPIOC
#endif

#if REVERSE_BUTTONS
#ifndef BTN_PIN_YES
#define BTN_PIN_YES GPIO5
#endif

#ifndef BTN_PIN_NO
#define BTN_PIN_NO GPIO2
#endif
#else
#ifndef BTN_PIN_YES
#define BTN_PIN_YES GPIO2
#endif

#ifndef BTN_PIN_NO
#define BTN_PIN_NO GPIO5
#endif
#endif


#endif
